On Mar 8, 2012, at 2:18 PM, CoGe - Tamas Nagy wrote: > I should subclass NSMutableArray because I had a project which used > NSMutableArray (calls) before, but was not thread safe. Anyway, I can't > really understand why it would be _really_ better to implement just > accessors, but maybe you could explain it a bit more?
Same reason you wouldn’t implement a “name” property as a NSMutableString — encapsulation, an important concept in object-oriented programming. Your object should be the only object that directly manipulates its internal data. You end up with a much more flexible design this way, for a lot of the reasons I already mentioned. Charles _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
